Formation of silver nanoparticles by electron transfer in peptides and c‐cytochromes
- Vasylevskyi, Serhii I. Department of Chemistry, University of Fribourg, Switzerland
- Kracht, Sonja Department of Chemistry, University of Fribourg, Switzerland
- Corcosa, Paula Department of Chemistry, University of Fribourg, Switzerland
- Fromm, Katharina M. Department of Chemistry, University of Fribourg, Switzerland
- Giese, Bernd Department of Chemistry, University of Fribourg, Switzerland
- Füeg, Michael Department of Chemistry and Biochemistry, University of Bern, Switzerland
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01.01.2017
Published in:
- Angewandte Chemie International Edition. - 2017, vol. 56, no. 21, p. 5926-5930
English
The reduction of Ag⁺ ions to Ag⁰ atoms is a highly endergonic reaction step, only the aggregation to Agn clusters leads to an exergonic process. These elementary chemical reactions play a decisive role if Ag nanoparticles (AgNPs) are generated by electron transfer (ET) reactions to Ag⁺ ions. We studied the formation of AgNPs in peptides by photoinduced ET, and in c-cytochromes by ET from their Fe²⁺/hemes. Our earlier photoinduced experiments in peptides had demonstrated that histidine prevents AgNP formation. We have now observed that AgNPs can be easily synthesized with less-efficient Ag⁺-binding amino acids, and the rate increases in the order lysine
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Chimie
- Language
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- English
- Classification
- Biological sciences
- License
- License undefined
- Identifiers
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- RERO DOC 288599
- DOI 10.1002/anie.201702621
- Persistent URL
- https://folia.unifr.ch/unifr/documents/305514
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